October weather forecast and climate
Berkeley, CA

the neon-lit iconic Berkeley University Sather Tower in California
the neon-lit iconic Berkeley University Sather Tower in California

Weather in October

October, like September, is another pleasant autumn month in Berkeley, California, with average temperature ranging between max 70.7°F (21.5°C) and min 54.9°F (12.7°C).

Temperature

In Berkeley, California, the average high-temperature marginally drops, from a moderately hot 76.6°F (24.8°C) in September, to an agreeable 70.7°F (21.5°C). In Berkeley, the average low-temperature is 54.9°F (12.7°C).

Humidity

October is the least humid month, with an average relative humidity of 64%.

Rainfall

In October, in Berkeley, the rain falls for 3.5 days. Throughout October, 0.28" (7mm) of precipitation is accumulated. Throughout the year, in Berkeley, there are 55.6 rainfall days, and 5.24" (133mm) of precipitation is accumulated.

Daylight

In Berkeley, California, the average length of the day in October is 11.2h.

Sunshine

The average sunshine in Berkeley, California, is 7h.

UV index

In Berkeley, California, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: In October, the average maximum UV index of 4 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in October in Berkeley?

The average high-temperature, in October, in Berkeley, California, is 70.7°F (21.5°C), while the average low-temperature is 54.9°F (12.7°C).

What is the least humid month in Berkeley?

The least humid month in Berkeley, California, is October, with an average relative humidity of 64%.

What is the average humidity in October in Berkeley?

In October, the average relative humidity in Berkeley is 64%.

How much does it rain in Berkeley in October?

In Berkeley, California, during October, the rain falls for 3.5 days and regularly aggregates up to 0.28" (7mm) of precipitation.

What is the average length of the day in October in Berkeley?

In October, the average length of the day in Berkeley, California, is 11.2h.

How many hours of sunshine does Berkeley have in October?

The average sunshine in October in Berkeley is 7h.

What is the UV index intensity in October in Berkeley?

The average daily maximum UV index in October in Berkeley is 4. A UV Index of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV radiation.

Average temperature in October
Berkeley, CA

Average temperature in October - Berkeley, CA
  • Average high temperature in October: 70.7°F

The warmest month (with the highest average high temperature) is September (76.6°F).
The month with the lowest average high temperature is December (55.4°F).

  • Average low temperature in October: 54.9°F

The month with the highest average low temperature is September (56.8°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).

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Average pressure in October
Berkeley, CA

Average pressure in October - Berkeley, CA
  • Average pressure in October: 29.98"

The month with the highest atmospheric pressure is January (30.13").
Months with the lowest atmospheric pressure are June, August and September (29.92").

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Average wind speed in October
Berkeley, CA

Average wind speed in October - Berkeley, CA
  • Average wind speed in October: 5.2mph

The windiest month (with the highest average wind speed) is May (7.3mph).
The calmest month (with the lowest average wind speed) is November (5mph).

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Average humidity in October
Berkeley, CA

Average humidity in October - Berkeley, CA
  • Average humidity in October: 64%

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (64%).

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Average rainfall in October
Berkeley, CA

Average rainfall in October - Berkeley, CA
  • Average rainfall in October: 0.28"

The wettest month (with the highest rainfall) is February (1.1").
The driest months (with the least rainfall) are June, July, August and September (0.08").

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Average rainfall days in October
Berkeley, CA

Average rainfall days in October - Berkeley, CA
  • Average rainfall days in October: 3.5 days

The month with the highest number of rainy days is March (8.7 days).
The month with the least rainy days is August (1.5 days).

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Average daylight in October /
Average sunshine in October
Berkeley, CA

Average daylight in October / Average sunshine in October - Berkeley, CA
  • Average daylight in October: 11.2h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in October: 7h

The month with the most sunshine is July (Average sunshine: 11.9h).
The month with the least sunshine is December (Average sunshine: 5.8h).

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Average sunshine days in October
Berkeley, CA

Average sunshine days in October - Berkeley, CA
  • Average sunshine days in October: 26 days

The month with the most sunshine days is October (26 days).
The month with the least sunshine days is February (20.5 days).

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Average UV index in October
Berkeley, CA

Average UV index in October - Berkeley, CA
  • Average UV index in October: 4

Months with the highest UV index are April, May, June, July, August and September (UV index 5).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in October
Berkeley, CA

Average cloud cover in October - Berkeley, CA
  • Average cloud cover in October: 17

The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is July (Cloud cover 11).

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Average visibility in October
Berkeley, CA

Average visibility in October - Berkeley, CA
  • Average visibility in October: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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